import {
    v4 as uuidv4
} from 'uuid'

// 生成一个随机字符串，且每次执行不能发生变化
export const getUUID = () => {
    let uuid_token = localStorage.getItem('UUIDTOKEN')
    if (!uuid_token) {
        // 生成临时身份
        uuid_token = uuidv4()
        localStorage.setItem('UUIDTOKEN', uuid_token)
    }
    return uuid_token
}